An abnormal curve of the lumbar spine is lordosis, also called sway back. An abnormal curve of the thoracic spine is kyphosis, also called hunchback. An abnormal curve from side-to-side is called scoliosis.
There are approximately 560,000,000,000 planets in outer space that scientists have discovered. In this solar system, there are eight planets. In this galaxy, there are likely between 50 billion and a trillion planets-or more. At this point, we can hardly guess.
Scientists estimate that 100 to 400 billion planets exist in the Milky Way galaxy. Some studies suggest that the number of planets in the Milky Way is greater than the number of stars, proposing that an average of 1.6 planets exist per star.